Line of Credit (Details Textual) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Line of Credit (Textual) [Abstract]
Total availability under line of credit agreement	$ 10.0
Letters of Credit Outstanding, Amount	0.6
Varying Interest on Line of credit agreement	LIBOR plus 1.5% to prime
Line of credit interest rate	1.50%
Line of credit facility amount outstanding	0	0
Maturity date of line of credit	Jun. 30, 2014
Maximum ratio of total liabilities to tangible net worth	1
Minimum required fixed coverage charge ratio	1.25
Company's tangible net worth ratio	0.35
Fixed charge coverage ratio	2.64
Company violated these covenants as a result of non cash charge		5.7
Company violation was resolved by a waiver that provided relief to effectively exclude charge		$ 5.7